/Vstring
This option embeds a text string in the .obj file. This string can label an .obj file with a version number or a copyright notice. Any space or tab characters must be enclosed in double quotation marks (") if they are a part of the string. A backslash (\) must precede any double quotation marks if they are a part of the string. A space between /V and string is optional.
You can also use #pragma comment with the compiler comment-type argument to place the name and version number of the compiler in the .obj file.
Compiler Options | Setting Compiler Options